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Finding the Fourth Proportional to 587,742.70, 880,836.45 and 520,869.10

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Solution

The fourth proportional to 587,742.70, 880,836.45 and 520,869.10 is: 780,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,742.70 : 880,836.45 = 520,869.10 : x
  2. Step 2: Convert to fraction form
    587,742.70/880,836.45 = 520,869.10/x
  3. Step 3: Cross multiply
    587,742.70x = 880,836.45 × 520,869.10
  4. Step 4: Simplify right side
    587,742.70x = 458,800,488,958.70
  5. Step 5: Solve for x
    x = 458,800,488,958.70/587,742.70
  6. Step 6: Final answer
    x = 780,614.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.